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Finding the Fourth Proportional to 543.35, 814.77 and 196.62

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Solution

The fourth proportional to 543.35, 814.77 and 196.62 is: 294.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    543.35 : 814.77 = 196.62 : x
  2. Step 2: Convert to fraction form
    543.35/814.77 = 196.62/x
  3. Step 3: Cross multiply
    543.35x = 814.77 × 196.62
  4. Step 4: Simplify right side
    543.35x = 160,200.08
  5. Step 5: Solve for x
    x = 160,200.08/543.35
  6. Step 6: Final answer
    x = 294.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.